TOI-6330 is a cool M-dwarf (about 0.53 solar masses, 3,539 K, 0.49 solar radii), 139 light-years from Earth. TOI-6330 b is a 10.0-Jupiter-mass companion, with an orbital period of 6.9 days, at 0.058 AU from its star, and an equilibrium temperature near 495 K, on an eccentric orbit (e ≈ 0.34), discovered in 2025 via transit. The inner world is a hot Jupiter — a gas giant hugging its star at a fraction of Mercury's distance — a class that forced astronomers to rethink how giant planets form and migrate inward.